Finally an inter PC safe from Meltdown and Spectre. About time.

yeokm1 · on Jan 6, 2018

I was actually working on this project before those attacks were announced. When I heard that pre-1995 CPUs were unaffected, I couldn't help but LOL and included a reference in my blog post as well.

exikyut · on Jan 7, 2018

The 486 has both branch prediction and a cache, but I'm not sure if it's vulnerable.

Reference: https://gist.github.com/ErikAugust/724d4a969fb2c6ae1bbd7b2a9...

Potential patch: https://gist.github.com/ErikAugust/724d4a969fb2c6ae1bbd7b2a9...

yeokm1 · on Jan 7, 2018

I just Googled to double check. The 486 does NOT have branch prediction.

Source 1: https://books.google.com.sg/books?id=MLJClvCYh34C&pg=PA122&l...

Source 2: https://books.google.com.sg/books?id=QzsEAAAAMBAJ&pg=PA59&lp...

exikyut · on Jan 7, 2018

Wow. So the 486 cores used for the Intel ME are completely Spectre-resistant.

That is hilarious.